20301+4007 ES  245

 
 
20h 30m 08.22s +40 06' 55.9" P.A. 158 sep 4.1 mag 10.87,11.22
 
 
Coord 2000
20301+4007
Discov num
ES  245
Comp
Coord arcsec 2000
20 30 08.22 +40 06 55.9
Date first
1892
Date last
2016
Obs
11
Pa first
161
Pa last
158
P.A. Now (θ)
158°
Sep first
3.7
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
10.87
Mag sec
11.22
delta mag (ΔM)
0.35
Spectral class
Pri motion ra
-019
Sec motion ra
+002
Pri motion dec
+064
Sec motion dec
+003
Notes
N (See Notes)
rPM=0.966
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
157.9
Precise sep
4.11
Constellation
Cygnus
Tycho2
3157-01213-1
Gaia DR2
17832406528
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20301+4007 ES 245 1998 7 159 3.4 10.87 11.22 D 203008.22+400655.9
20301+4007 ES 245 2002 8 158 4.1 10.87 11.22 D 203008.22+400655.9
20301+4007 ES 245 2016 11 158 4.1 10.87 11.22 N 203008.22+400655.9

If you need more information about this double, apply for a data request form to the WDS.